ICD-10-CM 2027
ICD-10 code for botulism poisoning
From the official ICD-10-CM alphabetic index entry “Poisoning (acute) › botulism”. Page updated September 29, 2026.
About coding botulism poisoning
The ICD-10-CM code for botulism poisoning is A05.1 (Botulism food poisoning).
Within A05 (other bacterial foodborne intoxications, not elsewhere classified), A05.1 is specifically for botulism food poisoning. Related codes cover foodborne staphylococcal intoxication (A05.0), foodborne Clostridium perfringens [Clostridium welchii] intoxication (A05.2), foodborne Vibrio parahaemolyticus intoxication (A05.3), foodborne Bacillus cereus intoxication (A05.4), foodborne Vibrio vulnificus intoxication (A05.5), other specified bacterial foodborne intoxications (A05.8) and bacterial foodborne intoxication, unspecified (A05.9).
Don't report A05.1 together with the conditions in its Excludes1 note: infant botulism (A48.51) and wound botulism (A48.52).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
Don't confuse with (Excludes1 for A05.1)
Common questions about botulism poisoning ICD-10 codes
What is the ICD-10 code for botulism poisoning?
- A05.1 — Botulism food poisoning.
Is A05.1 billable?
- Yes. A05.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A05.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A05.1 as a principal diagnosis.
Is A05.1 a CC or MCC?
- A05.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.